Having been a "postie" for quit a while now, it's interesting to learn a bit about what goes on "behind the scenes" at PayPerPost. Now you can get a peek via their blog and get a look at the current PPP news, updates and crazy videos.
Even if you're not a PPP "postie" I think it's interesting to see what is happening day-to-day at such an internet startup company. The recent posts cover topics such as their recent server upgrade, how search engines treat links embedded within sponsored posts, and some recent videos. The archives go back to the mists of time - June '06 in fact.